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Multiple particle break-up study of low excited states in Be-9: The ghost peak in the Be-8 excitation energy spectrum visited

Madurga, M. (author)
CSIC - Instituto de Estructura de la Materia (IEM)
Borge, M. J. G. (author)
CSIC - Instituto de Estructura de la Materia (IEM)
Fynbo, H. O. U. (author)
Århus Universitet,Aarhus University
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Jonson, Björn, 1941 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Nyman, Göran Hugo, 1943 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Prezado, Y. (author)
CSIC - Instituto de Estructura de la Materia (IEM)
Riisager, K. (author)
Århus Universitet,Aarhus University,Organisation européenne pour la recherche nucléaire (CERN),European Organization for Nuclear Research (CERN)
Tengblad, Olof, 1957 (author)
Chalmers tekniska högskola,Chalmers University of Technology
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 (creator_code:org_t)
Springer Science and Business Media LLC, 2007
2007
English.
In: European Physical Journal: Special Topics. - : Springer Science and Business Media LLC. - 1951-6401 .- 1951-6355. ; 150:1, s. 137-138
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The aim of this work is to find out the origin of the anomalous resonance in Be-8 seen in the reactions through excited states in Be-9. We have populated the Be-9 excited states by beta-decay of Li-9. Energy and direction of the two alpha particles has been detected and the neutron spectra reconstructed. In our work we identified the "anomalous resonance" in Be-8 observed in several reaction studies as coming from the decay of the 2.43 and 2.78 MeV states in Be-9. This anomalous resonance appears when the two detected alpha particles are assumed to form a resonance in Be-8. We argued that the main decaying channels for these two levels in Be-9 do not involve Be-8.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

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art (subject category)
ref (subject category)

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